Midrash su Giosuè 6:1

Now Jericho was straitly shut up because of the children of Israel, none went out and none ‎came in. And it came to pass in the second month, on the first of the month, that the Lord said ‎unto Joshua: Arise, for behold I have given Jericho into thy hands with all the people therein; ‎and all your host shall go around the city once each day and blow trumpets, for six days, and ‎the priests shall blow trumpets. And when you hear the sound of the trumpets all the people ‎shall utter a great shout, and the walls of the city shall fall down flat, and all the people shall ‎ascend up, every man straight before him; and Joshua did as the Lord had commanded him, ‎and on the seventh day he went around the city seven times, and the priests blew their ‎trumpets. And at the seventh circuit, Joshua said unto the people: Shout ye, for the Lord hath ‎delivered the whole city into your hands, but let the city with all that is in it be accursed unto ‎the Lord, and keep ye away from the accursed thing, lest ye bring curse and affliction into the ‎camp of Israel; and let all the gold and silver, the brass and iron, be consecrated unto the Lord, ‎to come into the treasury of the Lord. And the priests blew their trumpets, and the people ‎gave a great shouting, and the walls of Jericho fell down flat, and every man went into the city ‎straight before him. And they took the city, and they exterminated all that was in it, men and ‎women, young and old, oxen, sheep and asses, at the edge of the sword, and they burned the ‎entire city with fire, only the vessels of silver, and gold, and of brass, and of iron, they put into ‎the treasury of the Lord. And Joshua swore at that time, saying: Cursed be the man who ‎buildeth Jericho; he shall lay the foundation thereof in his first born, and in his youngest son ‎shall he set up the gates of it. But Achan, the son of Carmi, the son of Zabdi, the son of Zerah, ‎the son of Judah, committed a trespass on the accursed thing, and he took thereof and hid it in ‎his tent, and the anger of the Lord was kindled against Israel. And after the children of Israel ‎had returned from the burning of Jericho, Joshua sent men to search the city of Ai, and the ‎men went and they spied out the city, and they returned, saying: Let not all the people go up; ‎let about three thousand men go up to smite Ai, for they are but few. And Joshua did so, and ‎he took with him about three thousand men, and they fought with the men of Ai. But the ‎battle was adverse to Israel, and the men of Ai smote of Israel thirty-six men, and the children ‎of Israel fled from before the men of Ai. And Joshua rent his clothes and fell to the ground ‎upon his face before the Lord, with all the elders of Israel, and threw dust upon their heads.